EP 3182146 B1 20201104 - ELECTRONIC DEVICE, SYSTEM AND METHOD FOR INSULATION RESISTANCE MEASUREMENTS WITH FUNCTIONS OF SELF-DIAGNOSIS AND DIAGNOSIS OF INSULATION LOSS WITH RESPECT TO GROUND OF AN ENERGIZED ELECTRICAL APPARATUS
Title (en)
ELECTRONIC DEVICE, SYSTEM AND METHOD FOR INSULATION RESISTANCE MEASUREMENTS WITH FUNCTIONS OF SELF-DIAGNOSIS AND DIAGNOSIS OF INSULATION LOSS WITH RESPECT TO GROUND OF AN ENERGIZED ELECTRICAL APPARATUS
Title (de)
ELEKTRONISCHE VORRICHTUNG, SYSTEM UND VERFAHREN FÜR ISOLIERUNGSWIDERSTANDSMESSUNGEN MIT FUNKTIONEN ZUR SELBSTDIAGNOSE UND DIAGNOSE VON ISOLIERUNGSVERLUST BEZÜGLICH DER ERDUNG EINER UNTER SPANNUNG STEHENDEN, ELEKTRISCHEN VORRICHTUNG
Title (fr)
DISPOSITIF ÉLECTRONIQUE, SYSTÈME ET PROCÉDÉ DE MESURES DE RÉSISTANCE D'ISOLATION AVEC FONCTIONS D'AUTODIAGNOSTIC ET DE DIAGNOSTIC DE PERTE D'ISOLATION PAR RAPPORT À LA TERRE D'UN APPAREIL ÉLECTRIQUE ALIMENTÉ
Publication
Application
Priority
IT UB20159266 A 20151218
Abstract (en)
[origin: EP3182146A1] An electronic device 1 for the diagnosis of insulation loss of an energized electrical apparatus 2, with respect to a ground, is described. Device 1 comprises in particular a first resistance-switch group 13 and a second resistance-switch group 14, connectable or disconnectable in a controlled manner, and also a first measurement circuit 15 and a second measurement circuit 16, arranged in parallel to the first and second resistance-switch groups, respectively. The first and second measurement circuits 15 comprise respective first and second detection circuits (150, 160), first and second charge modulation circuits (151, 161) and first and second partition resistors (RB minus , RB plus ). The first and second charge modulation circuits (151, 161) allow a dynamic "switching" measurement technique. Moreover, a method is described for measuring the insulation resistances (RI minus , RI plus ) of an energized electrical apparatus 2 with respect to ground, in which the method is carried out by a device 1 according to the invention. Finally, a self-diagnosis method of device 1 is described.
IPC 8 full level
G01R 27/18 (2006.01); G01R 31/382 (2019.01); G01R 31/52 (2020.01)
CPC (source: CN EP US)
G01R 19/16566 (2013.01 - US); G01R 27/18 (2013.01 - CN EP US); G01R 27/2694 (2013.01 - CN); G01R 31/006 (2013.01 - US); G01R 31/12 (2013.01 - US); G01R 31/382 (2018.12 - EP US); G01R 31/52 (2020.01 - EP US); G01N 1/00 (2013.01 - US); G01N 2201/00 (2013.01 - US); G07C 5/0808 (2013.01 - US); H01G 2/00 (2013.01 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3182146 A1 20170621; EP 3182146 B1 20201104; CN 106896274 A 20170627; CN 106896274 B 20201027; IT UB20159266 A1 20170618; US 10175288 B2 20190108; US 2017176512 A1 20170622
DOCDB simple family (application)
EP 16203868 A 20161213; CN 201611182533 A 20161219; IT UB20159266 A 20151218; US 201615378922 A 20161214